Stop cock and valve



Dec. '0, 1924. 1,520,694

' B. BUTLER ET AL STOP COCK AND VALVE FiTed Nov, 26, 1921 F'IC.4.

d Z2 a ""I 5 a/ FIG. 7:

M Wpllw m1 Patented Dec. 36, 1924.

BENJAMIN BUTLER AND WILFRED BUTLER, OF DUKINFIELD, ENGLAND.

STOP COCK AND VALVE.

Application filed November 26, 1921.

To all whom it may concern:

Be it known that we, BENJAMIN BUTLER and 'WILrnnn BUTLER, subjects of the King of Great Britain and Ireland, residing at Borough Brass and Ironworks, Dukinfield, in the county of Chester, England, have invented new and useful Improvements incor Connected with Stop Cocks or Valves, of which the following is a specification.

Our said invention relates to improvements in or connected with stop cocks or valves and in particular to the class of valve which forms the subject matter of our United States of America Patent No. 1,37 0,875.

The present improvements have reference to. the valve seat, to the valve or clack, to the manner of aiding the latter end at the same time facilitating the engagement of the valve or claclcwith the non-rotatable but movable barrel.

Our improvements are illustrated by the attached drawing, in which:

Fig. 1 is a vertical section of one form of valve showing our features of novelty.

Fig. 2 shows a separate View of the valve or clack.

Fig. 3 is a separate plan view of the valve seat.

Fig. 4 shows in section the upper portion or second casting of the valve body and clearly illustrates the downwardly projecting sleeve which guides the valve or clack as well as other details.

Figs. 5 and 6 are elevations partly broke and partly in section and show a modification wherein the valve or clack is formed with a male cone, and a removable valve seat formed with a female cone.

According to our invention we provide a valve seat in the lower section of the valve body, and, by preference, this is a removable seat a (see Fig. 3) which is screwed into place in the bored web I) of the lower or main body casting b of the valve, the seat a having tool'holes a" formed in its annular flange for facilitating fixing and removal. We bore and tap the web Z2 and prepare an annular right-angle recess b so that when the seat a is screwed into place said recess forms a clearance space around the seat and a good joint is at once made between the lower cone on the valve seat and the web I), as Fig. 1 clearly shows. The seat a is bored as shown, but instead of having a fiat upper face for engagement by the valve it has a Serial No. 517,898.

conical extension or nipple a projecting upwards and we thus obtain a readily renewable metal seat with external conical face.

The. valve or clack c is of metal and has an interior cone face 0, the valve or clack in its preferred form being in the nature of a shallow inverted cup with shaped head or connecting button 0 for engaging in a slotted opening (2 in the movable barrel a? of the guided valve actuator or valve carrying part. Thus the valve or clack 0 with internal cone face, works to the seat a with external cone face and acts to open or close the valve as required. The lower projecting portion of the upper section or second casting- 6 of the valve body (which guides the movable barrel d) is cut with an external thread 6 for screwing same to the lower or main body casting b as before. As is well known in practice the upper and lower sec- ,tions may have flanges and be bolted together. The lower projecting portion of the upper section in any case we extend further downwards and said further extension may be free from thread as is shown. Such further extension, marked 6 serves as a well supported short sleeve or guiding extension to axially guide the valve or clack 0 by encircling its exterior vertical wall whereby the valve or clack o is held in what amounts to a. bearing and accurately guided to its seat a. In order to allow of easy engagement between the shaped head or connecting button 0 and the projection d at the lower extremity of the movable barrel d, we cut an opening 6 in the side of the sleeve or guiding extension 6 which guides the valve or clack a, such opening being of such dimensions as will serve the purpose and same is indicated clearly in Fig. 4.

We prefer to form an annular right-angle edge e on the casting e for the annular beveled face or surface 03 on the movable barrel d to imbed against when the valve is fully opened as shown in Fig. 1.

As a modification, we may have an in ternal conical face on the valve seat, as shown by a Fig. 6, and an external conical face on the valve or clack as shown by 6* Fig. 5, such being obviously a mere-inversion. In this case the valve or clack would have a cylindrical vertical wall and be guided in the sleeve or guiding extension 6 and its shaped head or connecting button would engage in the recess in the movable barrel 0?, such sleeve or guiding ex? cal tension e having the necessary opening e No matter what the form of the actual valve which efi'ects closure may be, the sleeve or guiding extension serves to guide and support said valve and enables the complete valve to be used in any position even on its side and to ensure a clear box seat.

By our improvements we obtain an extremely strong renewable seat, a strong valve or clack, the two Workin metal to met-a1, and the valve or clack is strongly supported and accurately guided and easily renewed.

The cone face onthe valve seat terminates at the bottom in a vertical face forming a cylindrical portion marked a and the cone faceon the valve or clack terminates at the top in a cylindrical portion marked 0 this provision being made to ensure a good conical face to face contact even under considerable wear of the parts and so as to obviate a ledge being formed by wear, which ledge would prevent the faces of the valve and seat making good contact.

I We declare that what we claim is:

I 1. A stop cook or valve provided with a web having an opening therethrough, an end of the wall surrounding the opening having a ri ht-angle recess, a valve in said opening aving an exteriorconical face, a clack movable to said valve seat, an. interior conical face on said clack adapted to engage the exterior conical seat, an upper body part and a lower body part detachably secured together, a sleeve forming an extension of the .upper body part and adapted to'guide said clack, a valve actuator, said actuator and clack having co-operating means whereby the clack is movable with the actuator, threaded means for operating the actuator, and means for preventing rotation of the actuator.

2. A stop cook or valve, comprising a lower body portion, a web in said lower body portion, said web having an opening theret rough, an end of the wall surrounding the opening having a right-angled recess therein, a removable valve'seat in said opening and having a lower conical face, and an upper exterior conical face, a valve clack having an interior conical face for cooperating with said exterior conical face of the valve seat, an upper body portion secured to the lower body portion, a guiding sleeve in the 11 per body portion, a valve actuator, means or preventin rotation of said actuator, the actuator aving means for en- 3. A stop cook or valve com rising a lower body portion,'a web in such ody portion, said web having an opening therethrough, an end of the wall surrounding the opening having a right-angle recess therein, a removable seat in said opening and having a lower conical face merging into a cylindrical portion thereby to provide an annular recess and form a clearance space around the valve seat, said seat also having'an upper exterior conical face, a removable clack having an interior conical facemerging into a c lindricalportion for cooperating with sai exterior conical face of the valve seat, an upper body portion co-operating with the lower body portion to form the valve casing, a sleeve-pendent from said "upper body o-rtion, a valve actuator, said actuator and c ack having co-operating means whereby the clack is movable with the actuator, said clack being guided by the sleeve, and screw threaded means for operating the actuator.

4. A stop cook or valve, comprising a lower body portion having a web. therein, said web provided with an opening therethrough, an end of the wall surrounding the opening having a right-angle recess cut therein, a removable valve seat in said opening, said valve seat havin a lower conical face bearing onthe ends 0 the wall of said right-angle recess, the valve seat also havin an upper exterior conical face, a valve clac having an interior conical face for engagement with said exterior conical face of the valve seat, an upper body portion having a sleeve pendent therefrom, said sleeve havingopenings extending into its side, a valve actuator disposed within said upper body portion and having side projections cooperating withsaid body portion for guiding, the actuator engaging means at the bottom of said actuator, engaging means on the valve clack for engaging the means on the valve actuator, said pendent sleeve, guiding the valve clack, and a screw device to operate the valve actuator.

In testimony whereof we names to this specification. I

- BENJAMIN BUTLER.

WILFRED BUTLER.

have signed our 

